TUMORS 1560 



TABLE OF TUMORS— Continued. 



TUMORS 



Name. 



Histologic Constituents. 



Physical Manifestations. 



Appearance of Sec- 

 tion. 



Chondroma. 



(Enchond ■ 

 roma.) 



Dermoid Cyst. 



Hyaline or fibro-cartilage, with few 

 blood-vessels. The cells are ar- 

 ranged irregularly and have irregu- 

 lar shapes, many being stellate or 

 spindle-shaped. 



See page 1564. 



Hard ; elastic ; nodular or tabu- 

 lated, sometimes smooth; round; 

 encapsulated ; usually single, 

 but may be multiple and sym- 

 metric. 



Homogeneous or j Small 

 coarsely granular ; 

 translucent ; bluish- 

 gray or pinkish- 

 white ; often marked 

 by connective-tissue 

 septa. 



Endothelioma 



Multiplication of endothelial cells 

 lining lymph-passages. A variety 

 of sarcoma. Large, round cells con- 

 taining one or two nuclei. Resem- 

 bles epithelial new-grawths. 



Circumscribed or extensive flat 

 growths, spreading over the ser- 

 ous membranes ; white in color. 



Epithelioma. 

 1. Squamous. 



2. Cylindric- 

 celled or 

 columnar- 

 celled. 



Composed of pegs or columns of 

 cuboidal epithelial cells which first 

 infiltrate the subjacent connective 

 tissue, then every underlying struc- 

 ture, including bone, in their track. 

 These ingrowths contain the cell- 

 nests, epidermal pearls, or pearly 

 bodies. 



Originates either from the cylindric 

 surface-epithelium of a mucous 

 membrane, or from that of glands 

 lined by columnar epithelium. Con- 

 tains no "cell-nests." Consists of al- 

 veoli containing cylindric cells at the 

 periphery, and irregular cells in the 

 center. Presents the character of 

 adeno-carcinoma. 



Dense; inelastic; non- encapsu- 

 lated ; ulcerated ; edges of ulcer 

 indurated. 



Soft, infiltrating masses or nodes, 

 or papillomatous growths. 



1. Squamous. 



White ; dense ; homo- 

 geneous ; poor in 

 juice ; when scraped 

 a gruel-like material 

 is obtained, which 

 consists of plugs of 

 cells and individual 

 cells. 



2. Cylindrical. 

 Soft, juicy; gelatinous 

 if mucoid or colloid. 



Fibroma. 



1. Hard. 



White, fibrous tissue, consisting of 

 fibers and few connective-tissue cor- 

 puscles ; blood-vessels few. 



2. Soft. 



Few fibers, many cells. 



1. Hard. 



Ovoidal or spherical ; lobulated ; 

 nodular or bossellated ; pedun- 

 culated or sessile ; firm, elastic ; 

 encapsulated ; glistening white, 

 yellowish, or slightly red color ; 

 unattached to overlying tissues ; 

 single or multiple. 



2. Soft. 



Soft, compressible ; sessile or pen- 

 dulous; single or multiple; en- 

 capsulated. 



1. Hard. 



Smooth, glistening, 



firm ; grayish-white 



color. 



2. Soft. 



Moist, not so glisten- 

 ing; more reddish. 



Glioma. 



Round cells, with large nuclei, em- 

 bedded in a scanty, granular, inter- 

 cellular substance. After the type 

 of the neuroglia of the brain. 



Soft, gelatinous, glue-like tumor; 

 not distinctly outlined ; some- 

 what translucent. Usually 

 single. 



Like brain-tissue, but 

 usually a little harder 

 and more reddish in 

 color. 



